Archive for the ‘Bash’ Category

Syscall Hijacking: Dynamically obtain syscall table address (kernel 2.6.x)

January 20, 2011 34 comments

Hi. In this post I’ll show you how to obtain dynamically the syscall table address. In the last posts (this and this) I wrote codes in which the syscall table address was hardcoded (as suggested by sj).
Now I’ll show you how to dinamically obtain it. Read more…

Bash http_proxy: from a user environment to sudo one

October 14, 2010 10 comments

Hi. Sometimes you can’t connect directly to internet, because you have to go through a proxy (i.e. working environment).
Did you ever have to set up an http proxy on linux shell in order to (i.e) download a new package or manually update your distribution with a packet manager?
If so, you need to be a superuser. If you use the “sudo” command, you will probably stumbled across the inability to export variables from the user environment to the “sudo” one.
Read more…

Categories: Bash, GNU/Linux Tags: , , ,